<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
    <div id="app" @click="handleClick">
        {{msg}}
    </div>
    <script>
        new Vue({
            el:"#app",
            data:{
                msg:"hello world"
            },
            methods:{
                handleClick(){
                    // 小程序中改变data中的数据
                    this.msg="change"
                }
            }
        })
    </script>
</body>
</html>